Fig. 5From: Black Phosphorus Nanoparticles Promote Osteogenic Differentiation of EMSCs Through Upregulated TG2 ExpressionAlkaline phosphatase (ALP) and Alizarin Red staining assays. A Osteogenic-differentiated EMSCs stained with Alizarin Red solution at day 14; B ALP staining was visualized under microscope; C the chart shows the quantification of Alizarin red deposition areas; D significantly higher ALP activity was shown in the BP-treated EMSCs group than that of the control group. Data were expressed as the mean ± SD. **p < 0.01Back to article page